package com.itheima.reggie.config;


import com.itheima.reggie.common.JacksonObjectMapper;
import lombok.extern.slf4j.Slf4j;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;

import java.util.List;

@Slf4j
@Configuration
public class WebMvcConfig extends WebMvcConfigurationSupport {

    @Override
    protected void addResourceHandlers(ResourceHandlerRegistry registry) {
        log.info("静态资源匹配.......");
        registry.addResourceHandler("/backend/**").addResourceLocations("classpath:/backend/");
        registry.addResourceHandler("/front/**").addResourceLocations("classpath:/front/");
    }

    /**
     * 拓展mvc消息转换器
     *方法说明:
     * @author xmc
     * @param converters
     * @return void
     * @date 2022/8/15 22:52
     */

    @Override
    protected void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
        log.info("消息转换器......");

        //创建消息转换器对象
        MappingJackson2HttpMessageConverter messageConverter = new MappingJackson2HttpMessageConverter();
        //设置对象转换器，底层将java对象转json
        JacksonObjectMapper jacksonObjectMapper = new JacksonObjectMapper();
        messageConverter.setObjectMapper(jacksonObjectMapper);
        //将上面转换器对象加到mvc消息转换器集合中
        converters.add(0,messageConverter);
    }
}
